It appears that the doctor fell asleep on his post, or else we might all of us have been better prepared for the invasion that we suffered during that night. I was awakened by loud shouts--the guides were uttering them. I sprang to my feet in the full belief that we were attacked by Indians, and at first thought caught hold of my gun. All my companions were roused about the same time, and, labouring under a similar hallucination, went through a like series of manoeuvres. But when we looked up, and beheld the doctor stretched along the ridge, and still snoring soundly, we scarce knew what to make of it. Ike and Redwood, however, accustomed to sleep with one eye open, had waked first, and had already climbed the ridge; and the double report of their guns confirmed our suspicions that we were attacked by Indians. What else could they be firing at? "This way all of you!" cried Redwood, making signs for us to come up where he and his companion already were, waving their guns around their heads, and acting in a very singular manner, "this way, bring your guns, pistols, and all--quick with you!" We all dashed up the steep, just at the moment that the doctor suddenly awaking ran terrified down. As we pressed up, we could hear a mingling of noises, the tramp of horsemen as we thought, and a loud bellowing, as if from a hundred bulls. The last sounds could not well have been more like the bellowing of bulls, for in reality it was such. The night was a bright moonlight, and the moment we raised our heads above the scarp of the ridge we saw at once the cause of our alarm. The plain around us was black with buffaloes! Tens of thousands must have been in the drove which was passing us to a great depth on both sides. They were running at a fast trot--some of them even galloping, and in some places they were so thickly packed together, that one would be seen mounting upon the hind-quarters of the other, while some were thrown down, and trampled over by their companions. "Hyur, hyur, all of ye!" cried Ike, "stand by hyur, or they'll git into the hole, and tramp us to shucks!"